DE543684C - Process for separating gas mixtures - Google Patents
Process for separating gas mixturesInfo
- Publication number
- DE543684C DE543684C DE1930543684D DE543684DD DE543684C DE 543684 C DE543684 C DE 543684C DE 1930543684 D DE1930543684 D DE 1930543684D DE 543684D D DE543684D D DE 543684DD DE 543684 C DE543684 C DE 543684C
- Authority
- DE
- Germany
- Prior art keywords
- cold
- air
- frozen
- losses
- additionally introduced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
Description
Bei dem Verfahren nach dem Hauptpatent 490 878 liegt als Beispiel das Zerlegungsverfahren nach Patent 167 931 zugrunde, wobei 2/3 der zu zerlegenden Luftmenge ohne nennenswerten Überdruck durch die Kältespeicher in den Rektifikator eingeblasen werden, während 1^ auf Kondensationsdruck verdichtet werden muß.In the method according to the main patent 490 878 as an example of the separation process is according to Patent 167 931 based on said 2/3 of are blown to be separated air flow without a significant pressure by the cold storage in the rectifier, while 1 ^ must be compressed to condensation pressure.
Das hat aber nur Gültigkeit für solche Fälle, wo nur Sauerstoff mit 47 0/0 und weniger gewonnen werden soll; wenn dagegen technisch reiner Sauerstoff verlangt wird, dann müssen von der zu zerlegenden Luft 4/5 der Menge auf einen Druck von 4 atü verdichtet werden, um die nötige Waschflüssigkeit zu erhalten. V5 kann dann mit einem Überdruck von einigen Zehnteln Atmosphären eingeblasen werden.But this is only valid for cases where only oxygen with 47% and less is to be obtained; whereas if technically pure oxygen is required, then you need / the amount atmospheres are compressed to a pressure of 4 5 to obtain the necessary washing liquid from the air to be separated. 4 V 5 can then be blown in with a pressure of a few tenths of an atmosphere.
Nun besitzt aber diese verdichtete Luft die Eigenschaft, daß sie mehr Kälte bei ihrer Abkühlung in den Kältespeichern von -(- 200 bis zur Verflüssigungstemperatur (1740 bei 4' atü) aufnehmen kann als die gleiche Menge Stickstoff, der im Kältetausch zur verdichteten Luft herausgeleitet wird, bei seiner Erwärmung von — 17 40 bis etwa -j- 200 abgeben kann.Now, however, this compressed air has the property that it can absorb more cold as it cools in the cold storage from - (- 20 0 to the liquefaction temperature (174 0 at 4 'atü) than the same amount of nitrogen, which in the cold exchange to the compressed air is passed out, can give off when heated from -17 4 0 to about -j- 20 0 .
Dies ist in dem vom idealen Gaszustand abweichenden Verhalten der verdichteten Luft begründet, und zwar ist dieser Unterschied 8°.This is in the behavior of the compressed air which deviates from the ideal gas state justified, namely this difference is 8 °.
Dazu kommt noch der Kälteverlust im Regenerator mit etwa 30. Wenn man also die auf 4 atü verdichtete Luft bis — 1740 abkühlen will, muß der herausgeleitete Stickstoff um 8-(-3= ii° kälter in den Regenerator unten eintreten, als die verdichtete Luft unten austritt. In addition, there is the loss of cold in the regenerator with about 3 0 . If you want to cool the air compressed to 4 atmospheres down to - 174 0 , the nitrogen that is led out must enter the regenerator below by 8 - (- 3 = ii ° colder than the compressed air exits below.
Diese große Temperaturdifferenz von ii° bringt aber den schweren Nachteil mit sich, daß dadurch die restlose Beseitigung des aus der Luft in den Regeneratoren abgesetzten Kohlensäurereifes auf dem Wege der Sublimation sehr behindert wird.This large temperature difference of ii ° but brings with it the serious disadvantage that thereby the complete elimination of the The carbonic acid ripening of the air in the regenerators by means of sublimation is very handicapped.
Wenn die Sublimationswirkung vollkommen genug verlaufen soll, dann darf die Temperaturdifferenz nicht mehr als 50 betragen, wenn möglich aber nur 30.If the Sublimationswirkung should run perfectly enough, then the temperature difference must not be more than 5 0 if possible but only 3 0th
Gegenstand der Erfindung ist nun ein Verfahren, die Temperaturdifferenz dadurch so klein wie möglich zu gestalten, daß etwa 3 bis 4 0/0 der Gesamtluftmenge, in einer Expansionsmaschine bis — 175° abgekühlt, in die Zerlegungsapparatur geleitet und durch die Regeneratoren zusätzlich heräusgeleitet werden, durch welche man die auf 4 atü verdichtete Druckluft hineinschickt. Damit kann nicht nur der Temperaturunterschied bis auf etwa 30 ausgeglichen, sondern es können auf diese Weise auch die Kälteverluste der gesamten Apparatur gedeckt werden, denn man führtThe subject matter of the invention is a method to make the temperature difference as small as possible in that about 3 to 4% of the total amount of air is cooled to -175 ° in an expansion machine, passed into the dismantling apparatus and also passed out through the regenerators, through which the compressed air compressed to 4 atmospheres is sent in. This allows not only the difference in temperature up to about 3 0 balanced, but can the entire apparatus be covered in this way, the cooling loss, because it leads
Claims (1)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE352570X | 1929-04-19 | ||
DEF68205D DE513683C (en) | 1929-04-19 | 1929-04-20 | Method for separating gas mixtures, in particular air |
DE371966X | 1930-02-06 | ||
US437204A US1970299A (en) | 1929-04-19 | 1930-03-19 | Low pressure process for separating low boiling gas mixtures |
US553768A US1989190A (en) | 1929-04-19 | 1931-07-29 | Apparatus for separating low boiling gas mixtures |
DEG84824D DE604119C (en) | 1929-04-19 | 1933-02-17 | Process for separating low-boiling gas mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
DE543684C true DE543684C (en) | 1933-06-09 |
Family
ID=31950892
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF68205D Expired DE513683C (en) | 1925-01-17 | 1929-04-20 | Method for separating gas mixtures, in particular air |
DE1930522068D Expired DE522068C (en) | 1929-04-19 | 1930-02-07 | Procedure to prevent the formation of frost when operating gas separation plants with cold storage tanks in switchover mode |
DE1930534555D Expired DE534555C (en) | 1929-04-19 | 1930-03-07 | Process for the separation of air |
DE1930543684D Expired DE543684C (en) | 1929-04-19 | 1930-07-26 | Process for separating gas mixtures |
DE1930555818D Expired DE555818C (en) | 1929-04-19 | 1930-11-13 | Process for separating low-boiling gas mixtures using cold storage tanks |
DEG84824D Expired DE604119C (en) | 1925-01-17 | 1933-02-17 | Process for separating low-boiling gas mixtures |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF68205D Expired DE513683C (en) | 1925-01-17 | 1929-04-20 | Method for separating gas mixtures, in particular air |
DE1930522068D Expired DE522068C (en) | 1929-04-19 | 1930-02-07 | Procedure to prevent the formation of frost when operating gas separation plants with cold storage tanks in switchover mode |
DE1930534555D Expired DE534555C (en) | 1929-04-19 | 1930-03-07 | Process for the separation of air |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930555818D Expired DE555818C (en) | 1929-04-19 | 1930-11-13 | Process for separating low-boiling gas mixtures using cold storage tanks |
DEG84824D Expired DE604119C (en) | 1925-01-17 | 1933-02-17 | Process for separating low-boiling gas mixtures |
Country Status (6)
Country | Link |
---|---|
US (3) | US1945634A (en) |
BE (2) | BE369658A (en) |
DE (6) | DE513683C (en) |
FR (2) | FR694035A (en) |
GB (4) | GB246172A (en) |
NL (2) | NL38758C (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422626A (en) * | 1937-08-28 | 1947-06-17 | Koehler Franz | Recovery of nitrogen and oxygen |
US2716333A (en) * | 1946-04-11 | 1955-08-30 | Little Inc A | Method and means for treating gases |
US2729953A (en) * | 1946-10-09 | 1956-01-10 | Air Prod Inc | Air fractionating cycle and apparatus |
US2626510A (en) * | 1947-06-18 | 1953-01-27 | Air Prod Inc | Air fractionating cycle and apparatus |
US2655796A (en) * | 1949-05-20 | 1953-10-20 | Union Carbide & Carbon Corp | Process of and apparatus for separating gas mixtures containing higher-boiling impurities |
US2709348A (en) * | 1949-05-20 | 1955-05-31 | Union Carbide & Carbon Corp | Process of and apparatus for separating gas mixtures |
US2663168A (en) * | 1949-05-23 | 1953-12-22 | Air Prod Inc | Method for defrosting gas separation systems |
US2673456A (en) * | 1949-06-16 | 1954-03-30 | Standard Oil Dev Co | Separation of low boiling gas mixtures |
US2716332A (en) * | 1950-04-20 | 1955-08-30 | Koppers Co Inc | Systems for separating nitrogen from natural gas |
DE894248C (en) * | 1951-04-08 | 1953-10-22 | Linde Eismasch Ag | Process for the separation of air by liquefaction and rectification |
US2668425A (en) * | 1951-08-25 | 1954-02-09 | Kellogg M W Co | Removing impurities from a gas liquefaction system with aid of extraneous gas stream |
US2802349A (en) * | 1951-08-25 | 1957-08-13 | Kellogg M W Co | Removing impurities from a gas liquefaction system with aid of extraneous gas stream |
US2873583A (en) * | 1954-05-04 | 1959-02-17 | Union Carbide Corp | Dual pressure cycle for air separation |
DE1065867B (en) * | 1957-07-04 | 1960-03-31 | Gesellschaft für Linde's Eismaschinen Aktiengesellschaft, Zweigniederlassung, Höllriegelskreuth bei München | Process and device for carrying out heat exchange processes in a gas separation plant working with upstream regenerators, |
US3091094A (en) * | 1957-07-04 | 1963-05-28 | Linde Eismasch Ag | Process of and apparatus for separating gases with cold production by workproducing expansion of low-boiling product |
US3086371A (en) * | 1957-09-12 | 1963-04-23 | Air Prod & Chem | Fractionation of gaseous mixtures |
US3205669A (en) * | 1960-08-15 | 1965-09-14 | Phillips Petroleum Co | Recovery of natural gas liquids, helium concentrate, and pure nitrogen |
NL131289C (en) * | 1963-04-25 | |||
FR1377370A (en) * | 1963-08-21 | 1964-11-06 | Air Liquide | Process for separating oxygen and oxygenated air from air |
US3340697A (en) * | 1964-05-06 | 1967-09-12 | Hydrocarbon Research Inc | Heat exchange of crude oxygen and expanded high pressure nitrogen |
US5802872A (en) * | 1997-07-30 | 1998-09-08 | Praxair Technology, Inc. | Cryogenic air separation with combined prepurifier and regenerators |
FR2807504B1 (en) * | 2000-04-07 | 2002-06-14 | Air Liquide | COLUMN FOR CRYOGENIC SEPARATION OF GASEOUS MIXTURES AND METHOD FOR CRYOGENIC SEPARATION OF A HYDROGEN AND CO-CONTAINING MIXTURE USING THE SAME |
-
0
- BE BE377118D patent/BE377118A/xx unknown
- NL NL31736D patent/NL31736C/xx active
- BE BE369658D patent/BE369658A/xx unknown
- NL NL38758D patent/NL38758C/xx active
-
1926
- 1926-01-18 GB GB1416/26A patent/GB246172A/en not_active Expired
-
1929
- 1929-04-20 DE DEF68205D patent/DE513683C/en not_active Expired
-
1930
- 1930-02-07 DE DE1930522068D patent/DE522068C/en not_active Expired
- 1930-03-07 DE DE1930534555D patent/DE534555C/en not_active Expired
- 1930-04-11 US US443480A patent/US1945634A/en not_active Expired - Lifetime
- 1930-04-16 GB GB12121/30A patent/GB352570A/en not_active Expired
- 1930-04-16 FR FR694035D patent/FR694035A/en not_active Expired
- 1930-04-16 GB GB12122/30A patent/GB355257A/en not_active Expired
- 1930-07-26 DE DE1930543684D patent/DE543684C/en not_active Expired
- 1930-11-13 DE DE1930555818D patent/DE555818C/en not_active Expired
-
1931
- 1931-02-03 FR FR710425D patent/FR710425A/en not_active Expired
- 1931-02-05 GB GB3697/31A patent/GB371966A/en not_active Expired
- 1931-07-29 US US553768A patent/US1989190A/en not_active Expired - Lifetime
-
1933
- 1933-02-17 DE DEG84824D patent/DE604119C/en not_active Expired
-
1934
- 1934-01-31 US US709235A patent/US2048076A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL38758C (en) | |
NL31736C (en) | |
FR710425A (en) | 1931-08-21 |
GB371966A (en) | 1932-05-05 |
DE604119C (en) | 1934-10-15 |
US2048076A (en) | 1936-07-21 |
US1989190A (en) | 1935-01-29 |
FR694035A (en) | 1930-11-27 |
GB246172A (en) | 1927-06-20 |
DE522068C (en) | 1931-03-30 |
BE369658A (en) | |
DE513683C (en) | 1930-12-01 |
DE534555C (en) | 1931-09-28 |
BE377118A (en) | |
US1945634A (en) | 1934-02-06 |
GB355257A (en) | 1931-08-17 |
DE555818C (en) | 1932-08-03 |
GB352570A (en) | 1931-07-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE543684C (en) | Process for separating gas mixtures | |
DE3606967A1 (en) | METHOD FOR PRODUCING NITROGEN UNDER PRESSURE, AND SYSTEM FOR IMPLEMENTING THE METHOD | |
DE1117616B (en) | Method and device for obtaining particularly pure decomposition products in cryogenic gas separation plants | |
DE837106C (en) | Process for cleaning and cooling compressed gas mixtures to be separated | |
DE2323410A1 (en) | METHOD FOR PRODUCING CARBON MONOXIDE BY GAS SEPARATION | |
DE1159971B (en) | Process for the production of gaseous and pressurized oxygen by decomposing air | |
DE1065867B (en) | Process and device for carrying out heat exchange processes in a gas separation plant working with upstream regenerators, | |
DE2335096C2 (en) | Method and device for the production of gaseous oxygen and gaseous nitrogen | |
DE1135935B (en) | Method and device for the production of low-purity oxygen by low-temperature air separation | |
DE833051C (en) | Process for cleaning and cooling compressed gas mixtures to be separated | |
DE1911765C3 (en) | Method and device for the cryogenic separation of air | |
DE1259363B (en) | Method of making oxygen and oxygen to about 70 percent air | |
DE1046640B (en) | Process and device for generating cold through work-performing relaxation | |
DE941796C (en) | Process for separating air in a gas separation system and a gas separation system suitable for carrying out this process | |
DE602952C (en) | Two-step process for separating air | |
DE1751235A1 (en) | Process for the production of helium and neon | |
DE336719C (en) | Process for the simultaneous production of technically pure nitrogen and oxygen | |
DE676861C (en) | Process for the simultaneous production of oxygen and nitrogen of high purity | |
DE894248C (en) | Process for the separation of air by liquefaction and rectification | |
DE838310C (en) | Process for gas separation, in particular for the production of ethylene | |
DE745667C (en) | Process for the separation of difficult-to-condense gas mixtures | |
DE1501732C3 (en) | Process for the liquefaction of oxygen or nitrogen obtained by air rectification when the demand for decomposition products changes | |
AT133305B (en) | Process for separating gas mixtures. | |
DE1171449B (en) | Method and device for separating air into liquid oxygen and liquid nitrogen | |
DE748699C (en) | Countercurrent step washer |